Imperium Campaign, game crash on Space Marine fleet move

While going through the campaign and after defeating the first Eldar special mission, unlocking the Agrippina sector. My game will crash everytime I move my Space marine fleets that participated in the mission. I can move any other fleet but specifically my Space Marine fleets will cause -Render Error code 1015- and crash the game everytime I move them. I only managed to move them over 1 planet once without crashing.

last edited by notzerg

Update: now all my fleets cause crashes upon moving seemingly at random. Space Marine fleets cause crashing almost everytime. This only started happening after unlocking the Agrippina sector.